DESCRIPTION OF PROBLEM
I'm working on a short edit composed of screen-recorded Zoom calls (isn't everyone right now? 😁) and I'm getting very poor performance and strange playback behavior from Premiere Pro. Given the nature of the video, the source files are mixed framerates, resolutions, audio sample rates, etc
I was sent an assembly edit by a producer who didn't mention having any problems with the footage at his end. He would have been on an Apple laptop but other than that I don't know anything about his system.
- Playback is laggy, choppy and often freezes, even on 1/4 playback resolution
- Long lag between hitting play and seeing playback in the program monitor. Audio often starts playing before picture.
- When video freezes, audio continues playing. I'll hit pause at that point, and playback will continue for up to five or six seconds, no matter what other playback controls I press.
- Despite the above, the actual timeline is smooth/responsive - no choppiness/lag in the movement of the playhead.
COMPUTER INFO
- OS: Windows 10 Home
- Processor: Intel Core i7-7820X 3.6 GHz 8-Core Processor
- Installed memory: 32GB
- Motherboard: MSI X299 SLI PLUS ATX LGA2066 Motherboard
- Graphics Card: Gigabyte GeForce RTX 2080 8 GB WINDFORCE OC Video Card
HARD DRIVE INFO Seagate BarraCuda Pro 4 TB 3.5" 7200RPM Internal Hard Drive
PROJECT INFO
- Premiere Version: 14.3.1 (updated 5th August)
- Footage: m.264 mp4 screen recordings, various resolutions from 352x640 to 1920x1080 (nothing higher than that), framerates range from 8 to 60fps, mixed audio sample rates (but the same issue affects all files during playback)
- TRT of timeline: 8mins
- Current project file size: 330kb
- Sequence Settings: 25fps, square pixels, progressive, audio at 48kHz, ProRes 422 preview format at 1080.
FAILED FIX ATTEMPTS
- Created proxies using the 'ProRes Low Resolution Proxy' preset
- Updated Premiere to latest version
- Toggled GPU Mercury playback/CPU
- Switched RAM from Performance to Memory
- Cleared cache
- Reduced RAM reserved for other applications to 3GB
- Rebooted, ran Premiere with no other apps open
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